return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for As(CH3)3 (trimethyl arsine)

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-2353.715996
Energy at 298.15K 
Nuclear repulsion energy288.008754
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD(T)/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
As1 0.000 0.000 0.482
C2 0.000 1.709 -0.528
C3 1.480 -0.855 -0.528
C4 -1.480 -0.855 -0.528
H5 0.000 1.519 -1.618
H6 1.316 -0.760 -1.618
H7 -1.316 -0.760 -1.618
H8 -0.896 2.297 -0.260
H9 2.438 -0.372 -0.260
H10 -1.541 -1.925 -0.260
H11 0.896 2.297 -0.260
H12 1.541 -1.925 -0.260
H13 -2.438 -0.372 -0.260

Atom - Atom Distances (Å)
  As1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
As11.98551.98551.98552.59232.59232.59232.57552.57552.57552.57552.57552.5755
C21.98552.96042.96041.10643.00243.00241.10503.21683.95661.10503.95663.2168
C31.98552.96042.96043.00241.10643.00243.95661.10503.21683.21681.10503.9566
C41.98552.96042.96043.00243.00241.10643.21683.95661.10503.95663.21681.1050
H52.59231.10643.00243.00242.63162.63161.80343.37124.01031.80344.01033.3712
H62.59233.00241.10643.00242.63162.63164.01031.80343.37123.37121.80344.0103
H72.59233.00243.00241.10642.63162.63163.37124.01031.80344.01033.37121.8034
H82.57551.10503.95663.21681.80344.01033.37124.27144.27141.79274.87563.0829
H92.57553.21681.10503.95663.37121.80344.01034.27144.27143.08291.79274.8756
H102.57553.95663.21681.10504.01033.37121.80344.27144.27144.87563.08291.7927
H112.57551.10503.21683.95661.80343.37124.01031.79273.08294.87564.27144.2714
H122.57553.95661.10503.21684.01031.80343.37124.87561.79273.08294.27144.2714
H132.57553.21683.95661.10503.37124.01031.80343.08294.87561.79274.27144.2714

picture of trimethyl arsine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
As1 C2 H5 110.708 As1 C2 H8 109.569
As1 C2 H11 109.569 As1 C3 H6 110.708
As1 C3 H9 109.569 As1 C3 H12 109.569
As1 C4 H7 110.708 As1 C4 H10 109.569
As1 C4 H13 109.569 C2 As1 C3 96.406
C2 As1 C4 96.406 C3 As1 C4 96.406
H5 C2 H8 109.271 H5 C2 H11 109.271
H6 C3 H9 109.271 H6 C3 H12 109.271
H7 C4 H10 109.271 H7 C4 H13 109.271
H8 C2 H11 108.414 H9 C3 H12 108.414
H10 C4 H13 108.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability